Niraparib Combined With Anlotinib in Homologous Recombination Repair (HRR) Gene-mutated Advanced Solid Tumors

Homologous Recombination Repair (HRR) gene mutations can be detected in many solid tumors, patients with HRR gene mutations may benefit from PARP inhibitor. Antiangiogenic drugs can induce hypoxia and increase the sensitivity to PARP inhibitor. The combination of PARP inhibitor and antiangiogenic drug can play a synergistic anti-tumor role and achieve good efficacy in HRR gene-mutated tumors. The purpose of the study is to determine the dose limiting toxicity (DLT) and maximum tolerable dose (MTD) of Niraparib plus Anlotinib in HRR gene-mutated advanced solid tumors, and evaluate the safety and effectiveness of this combination therapy preliminarily.

This is a single-arm, single-center, phase I study to investigate the DLT and MDT, safety and efficacy of Niraparib combined with Anlotinib in the treatment of advanced solid tumors with HRR gene mutations. In this study, 52 histological or cytological diagnosis, previous treatment failure patients of HER2 negative breast cancer, cholangiocarcinoma, gastric adenocarcinoma and pancreatic cancer are included and receive Niraparib combined with Anlotinib. Patients are required to carry pathogenic or suspected pathogenic gBRCA or sBRCA mutations, or HRR gene mutations defined by the inclusion criteria. The study will be divided into two phase. The first phase will include 6-12 patients on a 21-day cycle to determine the DLT and MTD. In the second phase, 40 patients will be included to treated with Niraparib plus Anlotinib until disease progression or intolerable toxicity or withdrawal of the trial.